Jean-Baptiste Leca

Partner

Jean-Baptiste Leca is a Paris Bar lawyer whose practice spans the full spectrum of intellectual property law, coupled with a strong command of complex and innovative contracts. He advises and represents clients across both contentious and non-contentious matters.
 
Known for his responsiveness and ability to devise practical, creative solutions, he assists French and international clients in protecting, enforcing and leveraging their IP rights, as well as in structuring and steering their industrial and commercial development projects.
 
Jean-Baptiste represents clients before French and European courts, including the Unified Patent Court (UPC) and intellectual property offices. He regularly coordinates with foreign colleagues, technical experts, and IP attorneys.
 
Jean-Baptiste has particular expertise in patent matters, notably in the health and life sciences sectors, and also advises clients active in the creative, beauty and food industries.
 
He holds a PhD and studied in France (Dauphine, Sciences Po and the Sorbonne), the United Kingdom (University College London) and the United States (Columbia Law School). He has practised in both France and Italy within leading law firms and IP practices.
 
Jean-Baptiste frequently speaks at professional and academic events in France and abroad, including at the Universities of Aix-Marseille, Turin and Naples.
 
He is recognised in Best Lawyers: Ones to Watch in France for Intellectual Property Law.
 
Jean-Baptiste works in French, English and Italian.

References

Published in La Gazette du Palais, June 2025

Published in Stratégies, June 2025

Published in La Gazette du Palais, July 2024

Published in Stratégies, June 2024

Published on Blip!, CEIPI Blog, November 2023

Doctoral thesis in Private Law (Aix-Marseille University), published in Les cahiers de droit de la santé (No. 34), December 2022

Published in Revue générale de droit médical – Panorama de droit pharmaceutique 2021, LEH Édition, March 2022

General Works Collection, LEH Édition, September 2020

Published in Revue générale de droit médical – Panorama de droit pharmaceutique 2019, LEH Édition, January 2020

7th Millésime – Wine, Law & Health Conference, Bordeaux, LEH Édition, November 2019

Winner of the APRAM Prize 2018, March 2018

5th Millésime – Wine, Law & Health Conference, Bordeaux, LEH Édition, November 2017

Università degli studi di Napoli Federico II

European Intellectual Property Law

Università degli studi di Torino

Comparative Intellectual Property Law

Aix-Marseille Université

Intellectual Property Rights in Comparative Health Law

École de Formation du Barreau (EFB Paris)

My First Patent Infringement Case

École Supérieure du Génie Informatique (ESGI)

Innovation & Patent Law

AI in IP – From Patenting to Infringement

Webinar hosted by the German Group of AIPPI

Enforcement of Financial Claims in IP Matters

AIPPI Trilateral Meeting (Germany – France – Poland), Warsaw

The Ins & Outs of Patent Litigation Funding

AIPPI Trilateral Meeting (Spain – France – Italy), Venice

International Association for the Protection of Intellectual Property (AIPPI)

Chair, Young Members Committee

Association Française des Avocats LGBT+ (AFALGBT+)

Secretary

Licensing Executives Society (LES) France